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Diffstat (limited to 'src/systemctl')
-rw-r--r--src/systemctl/systemctl.c233
1 files changed, 233 insertions, 0 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 2fbfd7eb9b..952be1d11f 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -1500,6 +1500,234 @@ finish:
return r;
}
+static int get_unit_path(
+ DBusConnection *bus,
+ DBusError *error,
+ const char *name,
+ char **unit_path) {
+
+ DBusMessage *m = NULL, *reply = NULL;
+ int r = 0;
+
+ assert(bus);
+ assert(error);
+ assert(name);
+ assert(unit_path);
+
+ *unit_path = NULL;
+
+
+ m = dbus_message_new_method_call("org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnit");
+ if (!m) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
+ if (!reply) {
+ if (streq(error->name, BUS_ERROR_NO_SUCH_UNIT)) {
+ dbus_error_free(error);
+ r = -EINVAL;
+ } else {
+ log_error("Failed to issue method call: %s", bus_error_message(error));
+ r = -EIO;
+ }
+ goto finish;
+ }
+
+ if (!dbus_message_get_args(reply, error,
+ DBUS_TYPE_OBJECT_PATH, unit_path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", bus_error_message(error));
+ r = -EIO;
+ goto finish;
+ }
+
+ *unit_path = strdup(*unit_path);
+ if (!(*unit_path)) {
+ log_error("Failed to duplicate unit path");
+ r = -ENOMEM;
+ }
+finish:
+ if (m)
+ dbus_message_unref(m);
+ if (reply)
+ dbus_message_unref(reply);
+ return r;
+}
+
+static int is_socket_listening(
+ DBusConnection *bus,
+ DBusError *error,
+ const char *socket_name) {
+
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusMessageIter iter, sub;
+ char *socket_object_path = NULL;
+ const char *sub_state = NULL,
+ *interface = "org.freedesktop.systemd1.Unit",
+ *property = "SubState";
+ int r = 0;
+
+ assert(bus);
+ assert(error);
+ assert(socket_name);
+
+ if ((r = get_unit_path(bus, error, socket_name, &socket_object_path)) < 0) {
+ goto finish;
+ }
+ m = dbus_message_new_method_call("org.freedesktop.systemd1",
+ socket_object_path,
+ "org.freedesktop.DBus.Properties",
+ "Get");
+ if (!m) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(error));
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_init(reply, &iter);
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply: %s", bus_error_message(error));
+ r = -EIO;
+ goto finish;
+ }
+ dbus_message_iter_get_basic(&sub, &sub_state);
+ r = streq(sub_state, "listening");
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ free(socket_object_path);
+ return r;
+}
+
+static void check_listening_sockets(
+ DBusConnection *bus,
+ DBusError *error,
+ const char *unit_name) {
+
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusMessageIter iter, sub;
+ const char *service_trigger = NULL,
+ *interface = "org.freedesktop.systemd1.Unit",
+ *triggered_by_property = "TriggeredBy";
+
+ char *unit_path = NULL;
+ int print_warning_label = 1;
+
+ if ((get_unit_path(bus, error, unit_name, &unit_path) < 0)) {
+ goto finish;
+ }
+
+ m = dbus_message_new_method_call("org.freedesktop.systemd1",
+ unit_path,
+ "org.freedesktop.DBus.Properties",
+ "Get");
+ if (!m) {
+ log_error("Could not allocate message.");
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &triggered_by_property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ goto finish;
+ }
+
+ reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
+ if (!reply) {
+ log_error("Failed to issue method call: %s", bus_error_message(error));
+ goto finish;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply: %s", bus_error_message(error));
+ goto finish;
+
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+ dbus_message_iter_recurse(&sub, &iter);
+ sub = iter;
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ int r = 0;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply: %s", bus_error_message(error));
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &service_trigger);
+
+ if (endswith(service_trigger, ".socket")) {
+ r = is_socket_listening(bus, error, service_trigger);
+ } else {
+ dbus_message_iter_recurse(&iter, &sub);
+ iter = sub;
+ continue;
+ }
+
+ if (r == 1) {
+ if (print_warning_label) {
+ log_warning("There are listening sockets associated with %s :", unit_name);
+ print_warning_label = 0;
+ }
+ log_warning("%s",service_trigger);
+ } else if (r < 0) {
+ log_error("Failed to issue function call: %s", bus_error_message(error));
+ goto finish;
+ }
+ dbus_message_iter_recurse(&iter, &sub);
+ iter = sub;
+ }
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ free(unit_path);
+}
+
static int start_unit_one(
DBusConnection *bus,
const char *method,
@@ -1580,6 +1808,11 @@ static int start_unit_one(
}
}
+ /* When stopping unit check if we have some listening sockets active */
+ if (streq(method, "StopUnit") && !arg_quiet) {
+ check_listening_sockets(bus, error, name);
+ }
+
r = 0;
finish: